Spirit mosquitos are level 17 Summoning familiars summoned using a spirit mosquito pouch. It can be used for Combat: it is level 20 and can hit up to 40 damage. It is immune to all types of poison. Additionally, its Pester scroll sends it off to directly attack an enemy. This is useful as an alternative method to initiate a battle with an enemy.

In theory, a player can get 99 summoning in one trip using only Spirit Mosquito pouches at level 17 at the Gu'Tanoth obelisk. All the ingredients stack and, after creating the pouches, they can be immediately swapped with Bogrog to recover some of their shard content, reducing costs. This could also be done at any other obelisk, but then scrolls must be made. If done so the player will need to make 280,247 pouches. The costs for doing so are very high as the proboscis is worth 6,817 coins in the Grand Exchange and the spirit shards are 25 coins each. Also, it would take an exorbitant amount of time to gather 280,247 charms. Furthermore, would take 1,910,443,799 coins for that many proboscides, excluding shards and pouches.